1.) In FORTRAN, a programmer can write: Integer Real Real Integer a.) Explain the semantics b.) Given...
Question:
Integer Real
Real Integer
a.) Explain the semantics
b.) Given the semantics, are \"Real\" and \"Integer\" reserved words or keywords?
c.) How does this design of FORTRAN affects program readability?
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2.) Code writability and readability are desirable characteristics of any high-level programming language, however, there is often an inherit tradeoff between them. Explain such tradeoff using some examples to support your discussion. (Hint: typed vs. un-typed languages, short-circuit evaluation, comprehension syntax, etc.)
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3.) The grammar goes:
=
+
| *
| ()
|
A | B | C
a.) Show left-most derivation of A = B + C * (B + C)
b.) Does this grammar handle operator precedence, use example expressions to support your answer.
c.) Change the grammar so that subtraction and division are accepted as valid operators in the expression
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4.) One attribute of a variable is address. Explain how a variable may bound to different addresses during program execution, use example(s).